Locomotive-boiler furnace.



F..F. GAINES.

LOCOMOTIVE BOILER FURNACE.

APPLICATION FILED JULY 24.1913.

Patented May 4, 1915.

f TE STATES PATENT OFFICE.

rnnnnsrcx r. esmns, or "SAVANNAH, anon-Gm, a'ssxonon, BY mnsnn ASSIGN- mnmrs, T0 summon: l nen COMPANY, or NEW Yemen. v. A conrone'rxon or DELAWARE.

LocomorIvE-fioILme FURNACE.

Specification of Letters Patent.

Patented May 4, 1.915.

Application filed July 24, 1913. Serial No. 780,988.

T 1121'. whom it may concern Be it known that LFRnonRICK GAINES, a citizen of the United States, fiend a resident of Savaimah, county of Qhatham and State of Georgia, have inv cnted certain new and useful Improvements ,in Locomotive- Eoiler Farmers, of Which the following is a specification.

My invention relates to improvements in locomotive boilers and has special reference to improvements in the fire boxes, of locomotives.

The object of my invention is to provide a fire box construction particularly adapted for the burning of fuel0il wherein and whereby the etiiciency of the fire boxes and the economy of the fuel consumption shall bedncreesed; to provide a fire box in which the gases of combustion shall be effectively intermingled and mixed through whibh their flow shall be retarded to a certain extent to permit the completion of combustion, and to cause the gases to effectively deliver heat to and through the Walls of the fire box.

A further object of my inventioniis to provide a. locomotive boiler fire box particularly adapted for the combustion of fueloil, and which shall effectively baffle the direct flow of the gases of combustion from the ignition point to the fines and thus cause the gases to fiowover substantially all of the interior sur aoes of the fire box in their passa e to the Flues.

A "rther olz-ject of my invention ,is to provide such a fire box wherein air shal-Lbe added to arid admixed with the gases of combustion after the fuel gases have been partly burned, and wherein the iunburned non-gaseous products of combustiomif any, shall. be separated from the gaseous products before the gases enter the fines.

A further object of my invention is to provide :1 iocomoti'vefire box wherein the advantages of an oil burner shall be combined with a, ballie wall arranged in the path of.

the burning gases and spaced from the flue sheets, v I

Aflifurther obycct of my invention is to enhence and increase the efiicicncy of loco motive lire boxes of the oil-burning type.

Further objects and features of my invention will appear herdinafter. My invention consists in a locomotive boiler fire box having a refractory chamber closing its lower end and which extends from the rear end of the fire box toward the forward end thereof, a transverse bafiie wall arranged within the fire box rising from the forward end of the refractory chemlxar and spaced rearwardly from the fine sheet, said chaimber being adapted to serve as e fuel-oil combustion chamber and the Wall serving to prevent the direct flow of the burning gases from the combustion chamber to the lines.

My invention further consists in a. fire box equipped as above stated, the bafile wall being provided ivith air inlet passages adapted to admit air into the fire box above the refractory combustion chamber whereby the efiiciency and economy of the fuel is enhanced.

A further obj ect of my invention is to provide a locomotive boiler fire box particularly adapted for burning fuel-oil and having an auxiliary chamber in direct communication with the fines and separated from the main combustion chamber by a. refractory wall, and means for admitting air to the gases of combustion between the main and the auxiliary combustion chambers.

My invention further consists in the sev eral arrangements and combinations of parts, and in the features of construction, by which the above and other objects are attained, and all as hereinafter described and particularly pointed out in the appended claims My invention will be more readily understood by reference to the accompanying drawings forming part of this specification and in which:

Figure 1 is a. vertical, longitudinal, central section of a. locomotive boiicr fire box embodying my invention; Fi 2 is a tra'nsve'rse, vertical section of the fire box on the line 2 of Fi l 1; and Fig. is a horizontal section a the cross wall on the line In the use of fuel-oil as 1''. fuel in locomotives, it has been found tlm-tes en with the best attainable nozzles or burners, and with the use of locomotive fire boxes as commonly equipped, the efiiciency of the fuei is not pcrect', for the reason that the air and fuel are not thoroughly intermingled and mixed and consequently some of the fuel enters at its lower endhich maintaining this wall in position upon. the plate a, I provide an upwardly projecting ledge (1 at the rear end of the plate against Wllifill the rear face of the hirer row of bricks contacts, and I provide a buck stay plate (Z conformed to and with the forward face of the wall secured rigidly at its 'lower end to the plate,- a. This buck stay Jlate preferably extends substantially the full height of the Wail and the upper raw d of the bricks d is secured to the upper part ml the buck stay plate by bolts d.

The auxiliar Y combustion chamber (1 serves to retard and hold any solid particles of fuel which may he carried over the hafile wail. for as the gases of combustion enter the auxiliary combustion chamber they ex" panel to fill the chamber and thusv reduce their rate of travel and thereby caused in deposit their burden, if any, of unburned fllfii.

For the purpose of conveniently removing any cinders or unburned fuel particles which may collect in the auxiliary combustion chamber, 1 provide in the floor thereof a amtmally closed cinderwpening E. This. upeuiug enters substantialiy tion of the flour of the auxiliary combustion chamber" a, and pnn'idcd w th 1. core normal and prevents the rntluihce at point. The cover a is hinged c furl adapted to be ewuug in one eh? pcru it the removal of the umtl'r ai an. 1 vellc ta within the hopper it. For the gun-'- w of causing any particles Wilil i! may 1 r in the lower owl of hc auxiliary a ation (hammer a to enter the hopper ii. morale this chamber with a iiupq'wewi 120: mm by filling in the corners thereof with re-- fleet-ur material providing inclined slur fume extending from the eug e of the hopper E to the eiria: walls of the comhuation chamb r:

The forward wall if of the wmbuetlou chamber 3 is prutwtmi. by mums of a plate which secured at its lower value to the lower plate iv and at its upper edge to the war mul of the finer plate a. The P'pimf c :m of this plate 5' extends above the plate a and provides the projection :17 hcretoibre mentioned.

in the use of my in ention, the cominm tion chamber B, once luwiug been heated. the oil which is projected there-into by memjra of the humer- (I is geaified by its contact with the heated Walk and floor thereof, and partly consumed by the air which enters through the upening is: it rises theuw through the fire but; in router-t with il mils thereof and with the haille wall and at the upper edge of this haliie wall I) it is c-iimhiucd and intermingled with the air which enters through the air passages (i in the wall D. The air is projectedupwardly the center por through the r: a" with considerable force by rer u at the fact that they are ar ranged in elose prux" nity to the vertical Wail or plate anci he locomotive moves forward the air beneath the fire but, in etril this icrtmal plan: Fl term? upwariliy 4i wi ced into and through the 'pn-rvaaages r1 inn: the comimatiou chamber. This serves to cause the incoming air to be thoroughly intermingled and mixeii with the r sing; lire hm: gases and thereby affect the eompiete combustion of the fuel. The height er. the wall D is: determiueti. by the details of shape and censtruetion of the fire hex in which it being); iustailcrl, but 'uaurll" is heat armugcu' to rise s u'ne 'u t aho' middle at the he ght of the fire ox. leaving a passage 1 ore the Wtii u .ntiailr a third of the Wntie heig As many mndifi: rill readily sug est ins invention. '35 lies to :me skille'ti in the art if dr- Eififi er confirm my ill-- V iiiltltifl :20 the spawn structures herein shown and. deecrlhei l, A lucmnemive 5 its Fewer curl and annihilation rlmmheac rear part thereof,

" Lu? um waiapw' gen-jumoil intu {and on rhanshcr .i refractory cruss f? H252 W; All; T lmx I we? of the cu iiwi ucra chamiwr and f *czlHHbWiiF f'orm .4: We a? an prethe ire-Quote of urn hex closed at a refractory lined.

minimizethe Mal pr viiiwi with a. V .7 urn cross; 5.1151 F: Wu mizallv above hi pr; mlmi with r-adul l'l in flar -:2 through the r the purpose a? flv ,i "ow-u'mwve ii oiiw' e hm: in hiuatinh with i; therefor provided in depressed cuml ueticu i'fid lfnbfil', wall of sale? wardiy from the flue sheet and with a burner opening, 2 mt. wall rising;- wi t m the burner upeuin eater of 1' ire hex :mri rawuted in; new rising; within the w flatten 1 in {Iii e Wail anti adapt r'li to a Mileage treated air inf; fizz-s: iJUK threu rh the rear face of the wait i *a boiler fire her eloseri at air ei. locomom its lower end and having a refractory combustion chamber in the rear part thereof, the forward wall of said combustion chamber containing a burner opening, a refractory cross wall rising Within the fire box above said burner opening and provided at its upper edge with a rearwardly projected ledge or coping and having oval air passages rising within the wall adapted to dis charge heated air through the rear face of the wall below said ledge or coping.

5. A locomotive boiler fire box, closed at its lower end and having a refractory combustion chamber in the rear part thereof, the forward wail of said combustion chamber being spaced rearwardly from the flue sheet and provided with a burner opening, a refractory cross wall rising within the fire box above said burner opening and provided at its upper edge with a rearwardly projected ledge or coping and having oval air passages rising within the wall ending in flared air 0 enin s positioned to disehargfi heated air t roug the rear face of the we below said ledge or coping.

6. A locomotive fire box ciosed at lower end and having a refractoqx lined oonibus tending air ad'mlssion passages having @111 red F outlets as and for the purpose specified.

In testimony whereof, I have be my hand, this 27th day of Junta the presence of two subscribing wi'tne I FREDERICK If. GZHNES Witnesses:

J. R. Konnrnn, J. G. KELLAM. 

